82845287117 has 4 divisors (see below), whose sum is σ = 82846768800. Its totient is φ = 82843805436.

The previous prime is 82845287099. The next prime is 82845287167. The reversal of 82845287117 is 71178254828.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82845287117 - 2⁸ = 82845286861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82845287167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653543 + ... + 769940.

It is an arithmetic number, because the mean of its divisors is an integer number (20711692200).

Almost surely, 2^82845287117 is an apocalyptic number.

It is an amenable number.

82845287117 is a deficient number, since it is larger than the sum of its proper divisors (1481683).

82845287117 is a wasteful number, since it uses less digits than its factorization.

82845287117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481682.

The product of its digits is 2007040, while the sum is 53.

The spelling of 82845287117 in words is "eighty-two billion, eight hundred forty-five million, two hundred eighty-seven thousand, one hundred seventeen".